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<div class="header">
  <div class="summary">
<a href="#define-members">Macros</a> &#124;
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle"><div class="title">sync.h File Reference</div></div>
</div><!--header-->
<div class="contents">
<div class="textblock"><code>#include &quot;<a class="el" href="pico_8h_source.html">pico.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="address__mapped_8h_source.html">hardware/address_mapped.h</a>&quot;</code><br />
<code>#include &quot;hardware/sync/spin_lock.h&quot;</code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for sync.h:</div>
<div class="dyncontent">
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<p><a href="rp2__common_2hardware__sync_2include_2hardware_2sync_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="define-members" name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:ad6caddf4f43a2065ee197c55cd1f8e8e"><td class="memItemLeft" align="right" valign="top"><a id="ad6caddf4f43a2065ee197c55cd1f8e8e" name="ad6caddf4f43a2065ee197c55cd1f8e8e"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><b>PARAM_ASSERTIONS_ENABLED_HARDWARE_SYNC</b>&#160;&#160;&#160;0</td></tr>
<tr class="separator:ad6caddf4f43a2065ee197c55cd1f8e8e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af2717529dbfc6e8655ae671b2e3d8b7b"><td class="memItemLeft" align="right" valign="top"><a id="af2717529dbfc6e8655ae671b2e3d8b7b" name="af2717529dbfc6e8655ae671b2e3d8b7b"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><b>remove_volatile_cast</b>(t,  x)&#160;&#160;&#160;({<a class="el" href="group__pico__platform.html#gac01ec0ae597f7572f8e298fa4f48c8e6">__compiler_memory_barrier</a>(); Clang_Pragma(&quot;clang diagnostic push&quot;); Clang_Pragma(&quot;clang diagnostic ignored \&quot;-Wcast-qual\&quot;&quot;); (t)(x); Clang_Pragma(&quot;clang diagnostic pop&quot;); })</td></tr>
<tr class="separator:af2717529dbfc6e8655ae671b2e3d8b7b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a38c90374caaf03336146a208546d139a"><td class="memItemLeft" align="right" valign="top"><a id="a38c90374caaf03336146a208546d139a" name="a38c90374caaf03336146a208546d139a"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><b>remove_volatile_cast_no_barrier</b>(t,  x)&#160;&#160;&#160;({ Clang_Pragma(&quot;clang diagnostic push&quot;); Clang_Pragma(&quot;clang diagnostic ignored \&quot;-Wcast-qual\&quot;&quot;); (t)(x); Clang_Pragma(&quot;clang diagnostic pop&quot;); })</td></tr>
<tr class="separator:a38c90374caaf03336146a208546d139a"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga9442d73d817ec600c67a632edf8c6668"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga9442d73d817ec600c67a632edf8c6668">__nop</a> (void)</td></tr>
<tr class="memdesc:ga9442d73d817ec600c67a632edf8c6668"><td class="mdescLeft">&#160;</td><td class="mdescRight">Insert a NOP instruction in to the code path.  <a href="group__hardware__sync.html#ga9442d73d817ec600c67a632edf8c6668">More...</a><br /></td></tr>
<tr class="separator:ga9442d73d817ec600c67a632edf8c6668"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga486eada32246494118f8273a80ae6856"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga486eada32246494118f8273a80ae6856">__sev</a> (void)</td></tr>
<tr class="memdesc:ga486eada32246494118f8273a80ae6856"><td class="mdescLeft">&#160;</td><td class="mdescRight">Insert a SEV instruction in to the code path.  <a href="group__hardware__sync.html#ga486eada32246494118f8273a80ae6856">More...</a><br /></td></tr>
<tr class="separator:ga486eada32246494118f8273a80ae6856"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7799a0b9fc6444d463170266392f5fcd"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga7799a0b9fc6444d463170266392f5fcd">__wfe</a> (void)</td></tr>
<tr class="memdesc:ga7799a0b9fc6444d463170266392f5fcd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Insert a WFE instruction in to the code path.  <a href="group__hardware__sync.html#ga7799a0b9fc6444d463170266392f5fcd">More...</a><br /></td></tr>
<tr class="separator:ga7799a0b9fc6444d463170266392f5fcd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaaf83973c85c4d0987d34f31ff9590ec5"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#gaaf83973c85c4d0987d34f31ff9590ec5">__wfi</a> (void)</td></tr>
<tr class="memdesc:gaaf83973c85c4d0987d34f31ff9590ec5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Insert a WFI instruction in to the code path.  <a href="group__hardware__sync.html#gaaf83973c85c4d0987d34f31ff9590ec5">More...</a><br /></td></tr>
<tr class="separator:gaaf83973c85c4d0987d34f31ff9590ec5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga577b1aba04c5e961c151c2b5d116618d"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga577b1aba04c5e961c151c2b5d116618d">__dmb</a> (void)</td></tr>
<tr class="memdesc:ga577b1aba04c5e961c151c2b5d116618d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Insert a DMB instruction in to the code path.  <a href="group__hardware__sync.html#ga577b1aba04c5e961c151c2b5d116618d">More...</a><br /></td></tr>
<tr class="separator:ga577b1aba04c5e961c151c2b5d116618d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf9544395481cc10fe75df2e8fe58d52a"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#gaf9544395481cc10fe75df2e8fe58d52a">__dsb</a> (void)</td></tr>
<tr class="memdesc:gaf9544395481cc10fe75df2e8fe58d52a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Insert a DSB instruction in to the code path.  <a href="group__hardware__sync.html#gaf9544395481cc10fe75df2e8fe58d52a">More...</a><br /></td></tr>
<tr class="separator:gaf9544395481cc10fe75df2e8fe58d52a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae516e592b0d308fe5b032e34109b0057"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#gae516e592b0d308fe5b032e34109b0057">__isb</a> (void)</td></tr>
<tr class="memdesc:gae516e592b0d308fe5b032e34109b0057"><td class="mdescLeft">&#160;</td><td class="mdescRight">Insert a ISB instruction in to the code path.  <a href="group__hardware__sync.html#gae516e592b0d308fe5b032e34109b0057">More...</a><br /></td></tr>
<tr class="separator:gae516e592b0d308fe5b032e34109b0057"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaac3457fdba1624e5f45e7f936ad68049"><td class="memItemLeft" align="right" valign="top">
static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><b>__mem_fence_acquire</b> (void)</td></tr>
<tr class="memdesc:gaac3457fdba1624e5f45e7f936ad68049"><td class="mdescLeft">&#160;</td><td class="mdescRight">Acquire a memory fence. <br /></td></tr>
<tr class="separator:gaac3457fdba1624e5f45e7f936ad68049"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga1a9f3cba87fe49a3907a1535b9adfa3f"><td class="memItemLeft" align="right" valign="top">
static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><b>__mem_fence_release</b> (void)</td></tr>
<tr class="memdesc:ga1a9f3cba87fe49a3907a1535b9adfa3f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Release a memory fence. <br /></td></tr>
<tr class="separator:ga1a9f3cba87fe49a3907a1535b9adfa3f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga15ada9cfb92615e5bb05a29aa3fc7ad8"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga15ada9cfb92615e5bb05a29aa3fc7ad8">save_and_disable_interrupts</a> (void)</td></tr>
<tr class="memdesc:ga15ada9cfb92615e5bb05a29aa3fc7ad8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Save and disable interrupts.  <a href="group__hardware__sync.html#ga15ada9cfb92615e5bb05a29aa3fc7ad8">More...</a><br /></td></tr>
<tr class="separator:ga15ada9cfb92615e5bb05a29aa3fc7ad8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga863cdac424a18c8ebfcc62107a4c2ad2"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga863cdac424a18c8ebfcc62107a4c2ad2">restore_interrupts</a> (uint32_t status)</td></tr>
<tr class="memdesc:ga863cdac424a18c8ebfcc62107a4c2ad2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Restore interrupts to a specified state.  <a href="group__hardware__sync.html#ga863cdac424a18c8ebfcc62107a4c2ad2">More...</a><br /></td></tr>
<tr class="separator:ga863cdac424a18c8ebfcc62107a4c2ad2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga4bb69d1717ab90105ea05b82291fc0c7"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="group__pico__platform.html#ga23eadd8d1642fb8fe4600708c36e116a">__force_inline</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga4bb69d1717ab90105ea05b82291fc0c7">restore_interrupts_from_disabled</a> (uint32_t status)</td></tr>
<tr class="memdesc:ga4bb69d1717ab90105ea05b82291fc0c7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Restore interrupts to a specified state with restricted transitions.  <a href="group__hardware__sync.html#ga4bb69d1717ab90105ea05b82291fc0c7">More...</a><br /></td></tr>
<tr class="separator:ga4bb69d1717ab90105ea05b82291fc0c7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga8f4578aa492d4d37dfbdab5c99ab5b1c"><td class="memItemLeft" align="right" valign="top">uint&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga8f4578aa492d4d37dfbdab5c99ab5b1c">next_striped_spin_lock_num</a> (void)</td></tr>
<tr class="memdesc:ga8f4578aa492d4d37dfbdab5c99ab5b1c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a spin lock number from the <em>striped</em> range.  <a href="group__hardware__sync.html#ga8f4578aa492d4d37dfbdab5c99ab5b1c">More...</a><br /></td></tr>
<tr class="separator:ga8f4578aa492d4d37dfbdab5c99ab5b1c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga50945cb4c33c3263b69e1fce81c474c7"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga50945cb4c33c3263b69e1fce81c474c7">spin_lock_claim</a> (uint lock_num)</td></tr>
<tr class="memdesc:ga50945cb4c33c3263b69e1fce81c474c7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Mark a spin lock as used.  <a href="group__hardware__sync.html#ga50945cb4c33c3263b69e1fce81c474c7">More...</a><br /></td></tr>
<tr class="separator:ga50945cb4c33c3263b69e1fce81c474c7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga41304e0ee0aed1b5c20b0fd8c2adf9e6"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga41304e0ee0aed1b5c20b0fd8c2adf9e6">spin_lock_claim_mask</a> (uint32_t lock_num_mask)</td></tr>
<tr class="memdesc:ga41304e0ee0aed1b5c20b0fd8c2adf9e6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Mark multiple spin locks as used.  <a href="group__hardware__sync.html#ga41304e0ee0aed1b5c20b0fd8c2adf9e6">More...</a><br /></td></tr>
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<tr class="memitem:ga177efc085451e4eabfc726897a59ca57"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga177efc085451e4eabfc726897a59ca57">spin_lock_unclaim</a> (uint lock_num)</td></tr>
<tr class="memdesc:ga177efc085451e4eabfc726897a59ca57"><td class="mdescLeft">&#160;</td><td class="mdescRight">Mark a spin lock as no longer used.  <a href="group__hardware__sync.html#ga177efc085451e4eabfc726897a59ca57">More...</a><br /></td></tr>
<tr class="separator:ga177efc085451e4eabfc726897a59ca57"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga157bccb525bdfd90255490558cbeb9c0"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga157bccb525bdfd90255490558cbeb9c0">spin_lock_claim_unused</a> (bool required)</td></tr>
<tr class="memdesc:ga157bccb525bdfd90255490558cbeb9c0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Claim a free spin lock.  <a href="group__hardware__sync.html#ga157bccb525bdfd90255490558cbeb9c0">More...</a><br /></td></tr>
<tr class="separator:ga157bccb525bdfd90255490558cbeb9c0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga9c66da8cbd0916461d6de2af4340ec4f"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hardware__sync.html#ga9c66da8cbd0916461d6de2af4340ec4f">spin_lock_is_claimed</a> (uint lock_num)</td></tr>
<tr class="memdesc:ga9c66da8cbd0916461d6de2af4340ec4f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Determine if a spin lock is claimed.  <a href="group__hardware__sync.html#ga9c66da8cbd0916461d6de2af4340ec4f">More...</a><br /></td></tr>
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